From: Takashi Sakamoto <o-takashi@sakamocchi.jp>
To: clemens@ladisch.de, tiwai@suse.de
Cc: alsa-devel@alsa-project.org
Subject: [PATCH 13/14] ALSA: firewire-motu: refactoring protocol v3 for clock source getter
Date: Tue, 19 May 2020 20:16:40 +0900 [thread overview]
Message-ID: <20200519111641.123211-14-o-takashi@sakamocchi.jp> (raw)
In-Reply-To: <20200519111641.123211-1-o-takashi@sakamocchi.jp>
This commit splits the method to get clock source for protocol
version 3 so that model-dependent operations are explicitly defined.
Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
---
sound/firewire/motu/motu-protocol-v3.c | 98 +++++++++++++++++++-------
1 file changed, 72 insertions(+), 26 deletions(-)
diff --git a/sound/firewire/motu/motu-protocol-v3.c b/sound/firewire/motu/motu-protocol-v3.c
index cc100d7be0bf..fd49d1fcf473 100644
--- a/sound/firewire/motu/motu-protocol-v3.c
+++ b/sound/firewire/motu/motu-protocol-v3.c
@@ -87,54 +87,100 @@ int snd_motu_protocol_v3_set_clock_rate(struct snd_motu *motu,
return 0;
}
-int snd_motu_protocol_v3_get_clock_source(struct snd_motu *motu,
- enum snd_motu_clock_source *src)
+static int detect_clock_source_828mk3(struct snd_motu *motu, u32 data,
+ enum snd_motu_clock_source *src)
{
- __be32 reg;
- u32 data;
- unsigned int val;
- int err;
-
- err = snd_motu_transaction_read(motu, V3_CLOCK_STATUS_OFFSET, ®,
- sizeof(reg));
- if (err < 0)
- return err;
- data = be32_to_cpu(reg);
-
- val = data & V3_CLOCK_SOURCE_MASK;
- if (val == 0x00) {
+ switch (data) {
+ case 0x00:
*src = SND_MOTU_CLOCK_SOURCE_INTERNAL;
- } else if (val == 0x01) {
+ break;
+ case 0x01:
*src = SND_MOTU_CLOCK_SOURCE_WORD_ON_BNC;
- } else if (val == 0x02) {
+ break;
+ case 0x02:
*src = SND_MOTU_CLOCK_SOURCE_SPH;
- } else if (val == 0x10) {
+ break;
+ case 0x10:
*src = SND_MOTU_CLOCK_SOURCE_SPDIF_ON_COAX;
- } else if (val == 0x18 || val == 0x19) {
- err = snd_motu_transaction_read(motu, V3_OPT_IFACE_MODE_OFFSET,
- ®, sizeof(reg));
+ break;
+ case 0x18:
+ case 0x19:
+ {
+ __be32 reg;
+ u32 options;
+ int err;
+
+ err = snd_motu_transaction_read(motu,
+ V3_OPT_IFACE_MODE_OFFSET, ®, sizeof(reg));
if (err < 0)
return err;
- data = be32_to_cpu(reg);
+ options = be32_to_cpu(reg);
- if (val == 0x18) {
- if (data & V3_NO_ADAT_OPT_IN_IFACE_A)
+ if (data == 0x18) {
+ if (options & V3_NO_ADAT_OPT_IN_IFACE_A)
*src = SND_MOTU_CLOCK_SOURCE_SPDIF_ON_OPT_A;
else
*src = SND_MOTU_CLOCK_SOURCE_ADAT_ON_OPT_A;
} else {
- if (data & V3_NO_ADAT_OPT_IN_IFACE_B)
+ if (options & V3_NO_ADAT_OPT_IN_IFACE_B)
*src = SND_MOTU_CLOCK_SOURCE_SPDIF_ON_OPT_B;
else
*src = SND_MOTU_CLOCK_SOURCE_ADAT_ON_OPT_B;
}
- } else {
+
+ break;
+ }
+ default:
*src = SND_MOTU_CLOCK_SOURCE_UNKNOWN;
+ break;
}
return 0;
}
+static int v3_detect_clock_source(struct snd_motu *motu, u32 data,
+ enum snd_motu_clock_source *src)
+{
+ switch (data) {
+ case 0x00:
+ *src = SND_MOTU_CLOCK_SOURCE_INTERNAL;
+ break;
+ case 0x01:
+ *src = SND_MOTU_CLOCK_SOURCE_WORD_ON_BNC;
+ break;
+ case 0x02:
+ *src = SND_MOTU_CLOCK_SOURCE_SPH;
+ break;
+ case 0x10:
+ *src = SND_MOTU_CLOCK_SOURCE_SPDIF_ON_COAX;
+ break;
+ default:
+ *src = SND_MOTU_CLOCK_SOURCE_UNKNOWN;
+ break;
+ }
+
+ return 0;
+}
+
+int snd_motu_protocol_v3_get_clock_source(struct snd_motu *motu,
+ enum snd_motu_clock_source *src)
+{
+ __be32 reg;
+ u32 data;
+ int err;
+
+ err = snd_motu_transaction_read(motu, V3_CLOCK_STATUS_OFFSET, ®,
+ sizeof(reg));
+ if (err < 0)
+ return err;
+ data = be32_to_cpu(reg) & V3_CLOCK_SOURCE_MASK;
+
+ if (motu->spec == &snd_motu_spec_828mk3)
+ return detect_clock_source_828mk3(motu, data, src);
+ else
+ return v3_detect_clock_source(motu, data, src);
+}
+
int snd_motu_protocol_v3_switch_fetching_mode(struct snd_motu *motu,
bool enable)
{
--
2.25.1
next prev parent reply other threads:[~2020-05-19 11:26 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-05-19 11:16 [PATCH 00/14] ALSA: firewire-motu: code refactoring to obsolete protocol structure Takashi Sakamoto
2020-05-19 11:16 ` [PATCH 01/14] ALSA: firewire-motu: move spec data to v2 protocol file Takashi Sakamoto
2020-05-19 11:16 ` [PATCH 02/14] ALSA: firewire-motu: move spec data to v3 " Takashi Sakamoto
2020-05-19 11:16 ` [PATCH 03/14] ALSA: firewire-motu: localize protocol data Takashi Sakamoto
2020-05-19 11:16 ` [PATCH 04/14] ALSA: firewire-motu: add wrapper functions for protocol-dependent operations Takashi Sakamoto
2020-05-19 11:16 ` [PATCH 05/14] ALSA: firewire-motu: drop protocol structure Takashi Sakamoto
2020-05-19 11:16 ` [PATCH 06/14] ALSA: firewire-motu: add model-specific table of chunk count Takashi Sakamoto
2020-05-19 11:16 ` [PATCH 07/14] ALSA: firewire-motu: add alternative functions to detect packet format for protocol v2 Takashi Sakamoto
2020-05-19 11:16 ` [PATCH 08/14] ALSA: firewire-motu: add alternative functions to detect packet format for protocol v3 Takashi Sakamoto
2020-05-19 11:16 ` [PATCH 09/14] ALSA: firewire-motu: use table-based calculation of packet formats for proc Takashi Sakamoto
2020-05-19 11:16 ` [PATCH 10/14] ALSA: firewire-motu: use table-based calculation of packet formats for stream management Takashi Sakamoto
2020-05-19 11:16 ` [PATCH 11/14] ALSA: firewire-motu: remove obsoleted codes Takashi Sakamoto
2020-05-19 11:16 ` [PATCH 12/14] ALSA: firewire-motu: refactoring protocol v2 for clock source getter Takashi Sakamoto
2020-05-19 11:16 ` Takashi Sakamoto [this message]
2020-05-19 11:16 ` [PATCH 14/14] ALSA: firewire-motu: refactoring protocol v2 for fetching mode switch Takashi Sakamoto
2020-05-22 14:53 ` [PATCH 00/14] ALSA: firewire-motu: code refactoring to obsolete protocol structure Takashi Iwai
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